Do not assume python... leverage ESS to improve R interaction.
Fix both undo and fontify in the presence of toggling cells (`C-c
C-t`)
Fix and test switching kernels
Be more informative to the user when we cannot find an executing cell in either
`ein:worksheet-jump-to-first-executing-cell' or
`ein:worksheet-jump-to-next-executing-cell'.
Coursera appears to kill websockets every minute or so, and I'm
observing firsthand the buggy behaviors described in #356. This PR
cleans up the websocket code and kernel restart logic. Removed
backwards compatibility for the v2 messaging api
as keeping it in the presence of the refactoring would make it more
broken that it already was.
Make `ein:gc-prepare-operation` idempotent and add missing call to
`ein:gc-complete-operation` - without it, each subsequently opened notebook
bumps gc threshold to a higher and higher value, effectively disabling all
garbage collection and seriously degrading overall performance.
Full undo support, including undoing cell actions, is still unstable and can
cause corruption of worksheet data so I am making this an optional feature. See
the variable `ein:worksheet-enable-undo', which by default will be set to nil.
It seems there are enough people out there still on Emacs 24 to warrant undoing
some of my recent moves away from eieio to cl-generic. For the near future I
will try to keep any changes that are incompatible with Emacs 24 to a
development branch. There is still probably plenty of opportunity to make the
code more future-proof for an eventual move away from eieio (I'm looking at you
oref and sref...)
Modify ein:get-kernel so it can retrieve the kernel from the local
worksheet variable in edit-cell-mode. This is done so that functions
such as ein:completer-complete and tooltips / inline help are
availeble to be bound by the user.
Mistyped some accessors for worksheet slot accessors. Correct
`*running-ipython-version*` hash to accept strings (i.e. URL's) as well as just
port numbers.
Automatically calling ein:notebooklist-login when a content API calls is a BAD
IDEA. Much better to warn and suggest, and if debugging is enabled throw the
error so hopefully a backtrace can be generated.
Taking some initial steps away from eieio and towards cl-generic.
Saving in a cell editing buffer now actually causes the cell in the worksheet to
be dynamically updated (oh how we have waited for this moment).
Try to get cell undo actions to be less likely to trigger an error.
tkf/emacs-request#60 was recently fixed, so no longer need to defadvice
`request--netscape-cookie-parse. Changed names of some obsolete variables. Also
trying to be a bit more clever in error handling by judicious use of
condition-case.
Some cell actions now have a true undo. Moving, inserting and executing cells
can all be undone. Deleting cell does not have an undo at the moment, though the
preferred method for users is to call ein:worksheet-kill-cell which puts the
removed cell into the kill-ring.
Using C-c', users can create a temporary buffer running an appropriate
mode to edit the contents of a notebook cell. This functionality is
intentionally very similar to what org-mode provides for editing blocks
of code or other.
The goal is to eventually eliminate most of the warnings that are
generated when byte-compiling ein.
Do this over several commits to make it easier to revert in the likely
event that something breaks.
Let the user control whether or not to view slide attributes in current
worksheet via `ein:worksheet-toggle-slideshow-view` (C-c S).
Also added a couple more slide attributes (fragment, notes) as
these appear to be support in current Jupyter version.
NBformat 4 has a tag key in the cell metadata. We use it to tag a cell
depending on which worksheet it is in. For now the code does nothing
else with this tag, but the goal is to reimplement multiple worksheets
in ein.
BEWARE! This is a large commit and the code here is still mostly
untested. Back up your notebooks before giving this changeset a try with
the current IPython-dev version.
Given that, ein is now able to open and save basic notebooks saved in
nbformat 4. Still haven't tested more complex notebooks with embedded
images.
